Measurement of the lepton charge asymmetry in W-Boson decays produced in pp collisions

CDF Collaboration

doi:10.1103/PhysRevLett.81.5754

Measurement of the lepton charge asymmetry in W-Boson decays produced in pp collisions

CDF Collaboration

Physics

Research output: Contribution to journal › Article › peer-review

85 Scopus citations

Abstract

We describe a measurement of the charge asymmetry of leptons from W-boson decays in the rapidity range 0 < |yl| < 2.5 using W → eν,μν events from 110±7pb^-1 of data collected by the CDF detector during 1992–1995. The asymmetry data constrain the ratio of d and u quark momentum distributions in the proton over the x range of 0.006 to 0.34 at Q² ≈ M² _W. The asymmetry predictions that use parton distribution functions obtained from previously published CDF data in the central rapidity region (0.0 < |yl| < 1.1) do not agree with the new data in the large rapidity region (|yl| > 1.1).

Original language	English (US)
Pages (from-to)	5754-5759
Number of pages	6
Journal	Physical review letters
Volume	81
Issue number	26
DOIs	https://doi.org/10.1103/PhysRevLett.81.5754
State	Published - 1998

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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10.1103/PhysRevLett.81.5754

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@article{b49729e7d6ca4ff69bf814cde9d2a2ed,

title = "Measurement of the lepton charge asymmetry in W-Boson decays produced in pp collisions",

abstract = "We describe a measurement of the charge asymmetry of leptons from W-boson decays in the rapidity range 0 < |yl| < 2.5 using W → eν,μν events from 110±7pb-1 of data collected by the CDF detector during 1992–1995. The asymmetry data constrain the ratio of d and u quark momentum distributions in the proton over the x range of 0.006 to 0.34 at Q2 ≈ M2 W. The asymmetry predictions that use parton distribution functions obtained from previously published CDF data in the central rapidity region (0.0 < |yl| < 1.1) do not agree with the new data in the large rapidity region (|yl| > 1.1).",

author = "\{CDF Collaboration\} and F. Abe and H. Akimoto and A. Akopian and Albrow, \{M. G.\} and A. Amadon and Amendolia, \{S. R.\} and D. Amidei and J. Antos and S. Aota and G. Apollinari and T. Arisawa and T. Asakawa and W. Ashmanskas and M. Atac and P. Azzi-Bacchetta and N. Bacchetta and S. Bagdasarov and Bailey, \{M. W.\} and \{De Barbaro\}, P. and A. Barbaro-Galtieri and Barnes, \{V. E.\} and Barnett, \{B. A.\} and M. Barone and G. Bauer and T. Baumann and F. Bedeschi and S. Behrends and S. Belforte and G. Bellettini and J. Bellinger and D. Benjamin and J. Bensinger and A. Beretvas and Berge, \{J. P.\} and J. Berryhill and S. Bertolucci and S. Bettelli and B. Bevensee and A. Bhatti and K. Biery and C. Bigongiari and M. Binkley and D. Bisello and Blair, \{R. E.\} and C. Blocker and S. Blusk and A. Bodek and W. Bokhari and G. Bolla and J. Olsen",

year = "1998",

doi = "10.1103/PhysRevLett.81.5754",

language = "English (US)",

volume = "81",

pages = "5754--5759",

journal = "Physical review letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "26",

}

TY - JOUR

T1 - Measurement of the lepton charge asymmetry in W-Boson decays produced in pp collisions

AU - CDF Collaboration

AU - Abe, F.

AU - Akimoto, H.

AU - Akopian, A.

AU - Albrow, M. G.

AU - Amadon, A.

AU - Amendolia, S. R.

AU - Amidei, D.

AU - Antos, J.

AU - Aota, S.

AU - Apollinari, G.

AU - Arisawa, T.

AU - Asakawa, T.

AU - Ashmanskas, W.

AU - Atac, M.

AU - Azzi-Bacchetta, P.

AU - Bacchetta, N.

AU - Bagdasarov, S.

AU - Bailey, M. W.

AU - De Barbaro, P.

AU - Barbaro-Galtieri, A.

AU - Barnes, V. E.

AU - Barnett, B. A.

AU - Barone, M.

AU - Bauer, G.

AU - Baumann, T.

AU - Bedeschi, F.

AU - Behrends, S.

AU - Belforte, S.

AU - Bellettini, G.

AU - Bellinger, J.

AU - Benjamin, D.

AU - Bensinger, J.

AU - Beretvas, A.

AU - Berge, J. P.

AU - Berryhill, J.

AU - Bertolucci, S.

AU - Bettelli, S.

AU - Bevensee, B.

AU - Bhatti, A.

AU - Biery, K.

AU - Bigongiari, C.

AU - Binkley, M.

AU - Bisello, D.

AU - Blair, R. E.

AU - Blocker, C.

AU - Blusk, S.

AU - Bodek, A.

AU - Bokhari, W.

AU - Bolla, G.

AU - Olsen, J.

PY - 1998

Y1 - 1998

N2 - We describe a measurement of the charge asymmetry of leptons from W-boson decays in the rapidity range 0 < |yl| < 2.5 using W → eν,μν events from 110±7pb-1 of data collected by the CDF detector during 1992–1995. The asymmetry data constrain the ratio of d and u quark momentum distributions in the proton over the x range of 0.006 to 0.34 at Q2 ≈ M2 W. The asymmetry predictions that use parton distribution functions obtained from previously published CDF data in the central rapidity region (0.0 < |yl| < 1.1) do not agree with the new data in the large rapidity region (|yl| > 1.1).

AB - We describe a measurement of the charge asymmetry of leptons from W-boson decays in the rapidity range 0 < |yl| < 2.5 using W → eν,μν events from 110±7pb-1 of data collected by the CDF detector during 1992–1995. The asymmetry data constrain the ratio of d and u quark momentum distributions in the proton over the x range of 0.006 to 0.34 at Q2 ≈ M2 W. The asymmetry predictions that use parton distribution functions obtained from previously published CDF data in the central rapidity region (0.0 < |yl| < 1.1) do not agree with the new data in the large rapidity region (|yl| > 1.1).

UR - https://www.scopus.com/pages/publications/4243742906

UR - https://www.scopus.com/pages/publications/4243742906#tab=citedBy

U2 - 10.1103/PhysRevLett.81.5754

DO - 10.1103/PhysRevLett.81.5754

M3 - Article

AN - SCOPUS:4243742906

SN - 0031-9007

VL - 81

SP - 5754

EP - 5759

JO - Physical review letters

JF - Physical review letters

IS - 26

ER -

Measurement of the lepton charge asymmetry in W-Boson decays produced in pp collisions

Abstract

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